| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33842 | 30283 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:43 | 2024 Dec 22 22:48 |
| Time of closest approach (UTC) | 2024 Dec 24 23:52:58.792 |
| Minimum distance | 4.553 km |
| Height difference | 4.534 km |
| Relative speed | 14.657 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 68.8°S, 71.1°W |
| Height | 780 km |
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